Q: What are the prime factors of the number 4,012,218?

 A: 2, 3, 7, 4549

Why are those the prime factors of the number 4,012,218?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 4,012,218

4,012,218
Factor Arrows
22,006,109
Factor Arrows
3668,703
Factor Arrows
3222,901
Factor Arrows
731,843
Factor Arrows
74,549

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 7, 4549

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 7 x 4,549 = 4,012,218

This can also be written as 21 x 32 x 72 x 4,5491 = 4,012,218

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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